Is nylon string profitable to sell on Amazon United States?

The niche generates $223K/yr across 38 tracked products. 3 of 4 products launched in the last 360 days are still selling. 90-day search growth is +22.6%. Flapen's verdict: Worth a look (51/100).

How competitive is the nylon string niche?

25 brands and 34 sellers compete. The top 5 products take 51% of clicks and top 5 brands hold 70% of demand.

What do buyers complain about in nylon string?

Top complaints mined from reviews: Thickness, Size-Overall, Stretchability/Expandability/Elasticity. The return rate is 1.7%.

When does demand for nylon string peak?

Demand peaks in Jul; the busiest month runs 1.8× the quietest.

What does it cost to enter the nylon string niche?

Listings span $4.78–$23.93; the average listing price is $9.13 (sweet spot $15–$100). The average incumbent carries 1,756 reviews — the moat a new listing must climb.

nylon string

Worth a look

Shows low returns (1.7%), but strong incumbent ratings (4.6★) keeps it on the watch list.

Returns

Great1.7%

return rate — above 5% kills the launch gate

Conversion

Good5.5%

search→purchase rate — share of searches ending in a sale

Brand share

Good70%

top-5 brand share — brands hold most of the demand

Competition

Good51%

top-5 click share — leaders hold, buyers still browse

Growth

Good+22.6%

90-day search growth — must beat 0% to launch

Review moat

Okay1,756.13

avg incumbent reviews — the moat a new listing must climb

Price range

Okay$4.78–$23.93

cheapest to priciest tracked listing — scored on the share inside $15–$100

Market size

Okay$223K

$223K/yr · 443K searches

Avg price

Okay$9.13

avg listing price — sweet spot $15–$100

Quality gap

Bad4.6★

avg incumbent rating — lower means beatable quality

According to Flapen's Amazon United States niche tracking, nylon string is a $223K/yr Amazon United States market (443K searches/yr). The top 5 brands hold 70% of demand. Demand peaks in Jul. Verdict: Worth a look — 51/100.

Data updated Jul 6, 2026 · scored weekly · How we score niches

nylon string market data

Units sold / yr: 20K–25K; avg 500–750/product
Revenue / yr: $183K–$228K; units × avg price
Conversion rate: 5.5%
Avg BSR: #61
Page quality: 0%
Prime: 100%
Sponsored: 92%
Out of stock: 3.9%
Avg brand age: 51 months
Avg seller age: 186 days

Competition & brand share

The top 5 products take 51% of clicks — established leaders, but buyers still shop beyond them.

Brands

25 falling

Sellers

Top-5 brand share

70%

Top 20: 95%

Top-5 click share

51%

Top 20: 81%

Open market

28%

LUSTEMBER32%
ACE Supply17%
cridoz13%
TECEUM5%
AUUTI4%
Kblick2%

Demand & seasonality

Weekly Amazon search volume, last 109 weeks — +22.6% search growth over the last 90 days.

Peak months: Jul · busiest ÷ quietest = 1.8×

Open Trend

Top nylon string search terms

nylon string170K/yr +23.2%4.8% conv.
nylon cord106K/yr +20.3%3.5% conv.
nylon string for bracelets37K/yr +19.9%3.4% conv.
nylon cord for jewelry making30K/yr +15.3%3.3% conv.
nylon twine22K/yr +20.6%5.1% conv.
braided nylon cord8K/yr +59.7%2.6% conv.
0.8mm nylon cord9K/yr +21.1%3.5% conv.
nylon cord for bracelets11K/yr +50.5%2.9% conv.
nylon beading cord5K/yr +87.5%3.8% conv.
thin nylon cord5K/yr +4.3%4.6% conv.

All search terms

Top nylon string products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Bright White Twine String - #18 Strong Nylon String - 250 Ft Length - White String for Gardening Nylon Twine for Plants

ACE Supply$7.074.7★2,904 rev

LUSTEMBER 0.8mm Nylon String Strong Bracelet String Durable Nylon Cord for Jewelry Making Bracelets Beading Necklaces Rattail Braiding Kumihimo Wind Chimes Blinds and Handicrafts

LUSTEMBER$6.914.7★1,284 rev

LUSTEMBER 0.8mm Nylon String Strong Bracelet String Durable Nylon Cord for Jewelry Making Bracelets Beading Necklaces Rattail Braiding Kumihimo Wind Chimes Blinds and Handicrafts

LUSTEMBER$6.984.7★1,284 rev

Nylon String for Bracelets Cridoz 20 Rolls Chinese Knotting Cord Nylon Beading Thread for Kumihimo Braided Bracelets Beading Necklaces Macrame Craft Wind Chime Jewelry Making

cridoz$17.334.7★1,458 rev

AUUTI 12 Rolls Nylon Braided String Macrame Jewelry Bracelet Craft Cord

AUUTI$9.584.5★58 rev

Newest

by launch date

20 Rolls Nylon String for Bracelets Making Nylon Cord for Jewelry Making Chinese Knotting Cord Nylon Beading Thread for Bracelets Beads Keychain Making Necklaces Kumihimo Crafts

RTTHEL$10.1217 rev

2w ago

POWJOY 50lb Heavy Duty Clear Monofilament Fishing Line 600 Yards Low Stretch Nylon Mono String with Knots Guide No-Tangle Snap Ring Multi Purpose for Hanging Flags/Decorations

POWJOY$22.09197 rev

2mo ago

Fusiolux 0.8mm Beading Thread for Bracelets 360 Ft Nylon String White

Fusiolux$6.94191 rev

9mo ago

AUUTI 12 Rolls Nylon Braided String Macrame Jewelry Bracelet Craft Cord

AUUTI$9.5858 rev

1y ago

SMART&CASUAL 100 ft 1/4 Polyester Rope (Comparable to Nylon Rope) Poly Strong Utility Cord for Clothes Line Flag Pole Camping Crafting (White)

SMART&CASUAL$6.821,027 rev

1y ago

What buyers say about nylon string

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall18%

“The color and finish look good, and the overall quality feels reliable”

Advertised Vs Actual Product14%

“As advertised”

Color11%

“The colors are vibrant”

Strength10%

“Nice and strong”

Value For Money8%

“Great value”

Durability7%

“Durable and reliable”

Ease Of Use5%

“Ease of use”

Efficiency4%

“Product is great works perfect for my needs”

Thickness3%

“Nice thickness”

Stretchability/Expandability/Elasticity3%

“It has amazing stretch”

What buyers complain about

Thickness14%

“Too thick”

Size-Overall13%

“Shorted amount”

Stretchability/Expandability/Elasticity11%

“Not elastic”

Quality-Overall10%

“Garbage”

Advertised Vs Actual Product6%

“False advertising”

Color4%

“Colors not accurate”

Durability3%

“I broke this by pulling on it”

Rope/Wire Tangling2%

“This cord wrapped on the cardboard leaves kinks in the cord which usually shows at the end of the lanyards Im tying”

Strength2%

“flimsy”

Material Quality2%

“Cant make a bracelet out of this material”

Top return reasons

Size-Overall23%

Thin22%

Advertised Vs Actual Product9%

Thickness8%

Stretchability/Expandability/Elasticity8%

Value For Money7%

Material Quality5%

Functionality-Overall4%

Color3%

Quality-Overall3%

Common questions

Is nylon string profitable to sell on Amazon United States?: The niche generates $223K/yr across 38 tracked products. 3 of 4 products launched in the last 360 days are still selling. 90-day search growth is +22.6%. Flapen's verdict: Worth a look (51/100).
How competitive is the nylon string niche?: 25 brands and 34 sellers compete. The top 5 products take 51% of clicks and top 5 brands hold 70% of demand.
What do buyers complain about in nylon string?: Top complaints mined from reviews: Thickness, Size-Overall, Stretchability/Expandability/Elasticity. The return rate is 1.7%.
When does demand for nylon string peak?: Demand peaks in Jul; the busiest month runs 1.8× the quietest.
What does it cost to enter the nylon string niche?: Listings span $4.78–$23.93; the average listing price is $9.13 (sweet spot $15–$100). The average incumbent carries 1,756 reviews — the moat a new listing must climb.